annotate KSP generated classes with @generated (#1400)

* annotate generated classes with @generated

* annotate fields with @JvmField

Author: lion7

querydsl-tooling/querydsl-ksp-codegen/src/main/kotlin/com/querydsl/ksp/codegen/QueryModelRenderer.kt

@@ -1,5 +1,6 @@
 package com.querydsl.ksp.codegen
 
+import com.querydsl.core.annotations.Generated
 import com.querydsl.core.types.ConstructorExpression
 import com.querydsl.core.types.Path
 import com.querydsl.core.types.PathMetadata
@@ -16,6 +17,7 @@ object QueryModelRenderer {
                 .setPrimaryConstructor(model)
                 .setEntitySuperclass(model)
                 .addSuperConstructorParameter(model)
+                .addAnnotation(Generated::class)
                 .build()
 
             else -> TypeSpec.classBuilder(model.className)
@@ -28,6 +30,7 @@ object QueryModelRenderer {
                 .constructorForTypeMetadata(model)
                 .addInitializerCompanionObject(model)
                 .addInheritedProperties(model)
+                .addAnnotation(Generated::class)
                 .build()
         }
     }
@@ -68,7 +71,13 @@ object QueryModelRenderer {
 
     private fun TypeSpec.Builder.addProperties(model: QueryModel): TypeSpec.Builder {
         model.properties
-            .map { renderProperty(it) }
+            .map {
+                val propertySpec = renderProperty(it)
+                when {
+                    propertySpec.delegated -> propertySpec
+                    else -> propertySpec.toBuilder().addAnnotation(JvmField::class).build()
+                }
+            }
             .forEach { addProperty(it) }
         return this
     }

querydsl-tooling/querydsl-ksp-codegen/src/test/kotlin/RenderTest.kt

@@ -115,6 +115,7 @@ class RenderTest {
         val code = typeSpec.toString()
         code.assertCompiles()
         code.assertLines("""
+            @com.querydsl.core.annotations.Generated
             public class QArticle : com.querydsl.core.types.dsl.EntityPathBase<Article<*>> {
                 public constructor(path: com.querydsl.core.types.Path<out Article<*>>) : super(path.type, path.metadata)
                 
@@ -348,4 +349,4 @@ class Level1 {
     class Level2 {
         class Level3
     }
-}
+}